where i need to take backup from server side or 3cx management console?Take a backup of the system and then just push it whenever you can , so far on all installations i had less then 5 minutes downtime to apply this patch.
A backup from management console would suffice , if you want to be extra safe you can always take a snapshot of the VM if you run it in a VMwhere i need to take backup from server side or 3cx management console?
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